Skip to main content

Posts

Showing posts with the label COLOUR SPACE AND DIGITAL PHOTOGRAPHY

HOW DOES A SOUND CARD AND VIDEO CARD WORK

  HOW DOES A SOUND CARD AND VIDEO CARD WORK? A SOUND CARD, ALSO KNOWN AS AN AUDIO INTERFACE OR AUDIO CARD, IS A HARDWARE COMPONENT IN A COMPUTER THAT IS RESPONSIBLE FOR PROCESSING AND MANAGING AUDIO SIGNALS. ITS PRIMARY FUNCTION IS TO CONVERT DIGITAL DATA INTO ANALOG SIGNALS THAT CAN BE PLAYED THROUGH SPEAKERS OR HEADPHONES, AND VICE VERSA. HERE'S A BRIEF OVERVIEW OF HOW A SOUND CARD WORKS IN A PC: 1.     INPUT AND OUTPUT: ·          INPUT: WHEN YOU SPEAK INTO A MICROPHONE OR CONNECT ANOTHER AUDIO SOURCE TO YOUR COMPUTER, THE SOUND CARD CONVERTS THE ANALOG AUDIO SIGNALS FROM THE MICROPHONE INTO DIGITAL DATA THAT THE COMPUTER CAN PROCESS. ·          OUTPUT: WHEN YOU PLAY MUSIC, VIDEOS, OR ANY OTHER AUDIO CONTENT ON YOUR COMPUTER, THE SOUND CARD CONVERTS THE DIGITAL AUDIO DATA INTO ANALOG SIGNALS THAT CAN BE SENT TO SPEAKERS OR HEADPHONES FOR YOU TO HEAR. 2.  ...
Post a Comment
Read more

DIFFERENT TYPES OF CD'S AND DVD'S

    DIFFERENT TYPES OF CD’S AND DVD’S CDS, OR COMPACT DISCS, COME IN VARIOUS TYPES, EACH DESIGNED FOR SPECIFIC PURPOSES. HERE ARE SOME COMMON TYPES OF CDS: 1.        CD-DA (COMPACT DISC DIGITAL AUDIO):  THIS IS THE STANDARD AUDIO CD FORMAT USED FOR STORING MUSIC. IT HAS A CAPACITY OF 74 OR 80 MINUTES OF AUDIO. 2.        CD-ROM (COMPACT DISC READ-ONLY MEMORY):  THESE DISCS ARE USED FOR STORING DATA AND ARE READ-ONLY, MEANING YOU CANNOT WRITE OR MODIFY THE DATA ON THEM. THEY ARE COMMONLY USED FOR SOFTWARE DISTRIBUTION, GAMES, AND OTHER APPLICATIONS. 3.        CD-R (COMPACT DISC RECORDABLE):  CD-RS ARE WRITE-ONCE DISCS THAT ALLOW YOU TO RECORD DATA ONTO THEM. ONCE RECORDED, THE DATA CANNOT BE ERASED OR MODIFIED. THEY ARE COMMONLY USED FOR CREATING BACKUP DISCS, SHARING DATA, AND BURNING MUSIC OR VIDEOS. 4.        CD-RW (COMPACT DISC REWRITABLE): ...
Post a Comment
Read more

DIGITAL IMAGES, DIGITAL IMAGES QUALITIES A SHORTNOTE

DIGITAL IMAGES, DIGITAL IMAGES QUALITIES A SHORT NOTE: THE FOLLOWING TERMINOLOGY IS HELPFUL TO KNOW WHEN LEARNING ABOUT THE TYPES OF DIGITAL IMAGES.   TONAL RANGE  – IT IS ALSO CALLED DYNAMIC RANGE.  THIS TERM REFERS  TO DARK TO LIGHT RANGES OR VALUES IN AN IMAGE USUALLY REFERED TO AS SHADOWS MIDTONES AND HIGHLIGHTS.  AN IMAGE THAT CONTAINS ALL OR MOST OF THE POSSIBLE TONES, RATHER THAN A SMALLER PORTION OF THE POSSIBLE TONES, USUALLY APPEARED  MORE DETAILS AND SAID TO HAVE LARGER TONAL RANGE OR DYNAMIC RANGE.   TONES MAY ALSO REFFERED TO AS LEVELS OR INTENSITIES.   BRIGHTNESS LIGHTNESS LUMINOSITY LUMINANCE   - THESE TERMS REFER TO DARK TO LIGHT TONAL CHARACTERISTICS, AS OPPOSED TO COLOR CHARACTERISTICS.  THEY CAN BE THOUGHT OF AS DESCRIBING THE IMAGE AS IF THE COLORS HAD BEEN CONVERTED TO BLACKS GRAYS AND WHITES   HUE – IT IS IDENTIFIED BY THE NAME OF THE COLOR SUCH AS RED ...
Post a Comment
Read more